From: Rick Waldron <waldron.rick@gmail.com>
Date: Mon, 31 Dec 2012 23:06:38 +0000 (-0500)
Subject: Only splice from internal arrays when item actually exists.
X-Git-Tag: 2.0.0b1~51
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=f717226b3a44f918eec30b2d59ab257270189bc3;p=jquery.git

Only splice from internal arrays when item actually exists.

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
---

diff --git a/src/data.js b/src/data.js
index 6e1465b3b..e6915e9b8 100644
--- a/src/data.js
+++ b/src/data.js
@@ -122,8 +122,11 @@ Data.prototype = {
 	},
 	discard: function( owner ) {
 		var index = this.owners.indexOf( owner );
-		this.owners.splice( index, 1 );
-		this.cache.splice( index, 1 );
+
+		if ( index >= 0 ) {
+			this.owners.splice( index, 1 );
+			this.cache.splice( index, 1 );
+		}
 		return this;
 	}
 };